Just got Vivian so I'm not that far in, but...
This is something I see in a lot of newbie RPGMaker games, so let's learn about TILE EFFICIENCY. TILE EFFICIENCY is all about not making your maps so big that the player has to waste a whole lotta time walking around.
Let's use Rockwell's house as an example:
Damn, son! Look at all those wasted tiles. Three quarters of the floor is totally useless, but you still gotta walk across the whole thing.
Now let's introduce some TILE EFFICIENCY!
Barely any detail removed, and the door was moved closer to where you start. Now you only gotta walk six spaces to get out, instead of like twenty.
Now of course dungeons are an entirely different matter since you gotta cross space to fight battles, but this is important to keep in mind when working on town maps. Always ask yourself, "can I squish this down any more without losing anything important?"
As far as gameplay goes I think you need to work on how you're balancing out Rockwell's arsenal. His starting glove hits twice, which by default makes it better than any weapon he gets that hits just once because most of his damage comes from his strength, not from the weapon itself. Dogfight makes it so you can hit twice with any glove but then you're spending mana to do it and the scaling of the formula (looked in the database) is gonna make it of questionable efficiency once he gets into higher levels.
Also lol at Lizz being the "muscle" of the three, but doing the least damage and having the least HP.